/* =========================================================
   FDE 培训子站样式
   沿用官网设计语言：电光蓝 × 靛青
   ========================================================= */
:root{
  --coral:#0B6BFF; --coral-2:#2E8BFF; --coral-3:#00D8FF;
  --violet:#4F46E5; --violet-2:#6366F1; --pink:#00A3FF;
  --bg:#F4F8FF; --surface:#FFFFFF;
  --ink:#0B1628; --ink-2:#33465E; --muted:#64748B;
  --line:rgba(11,22,40,.09); --line-2:rgba(11,22,40,.055);
  --grad:linear-gradient(115deg,#00D8FF 0%,#0B6BFF 30%,#2E8BFF 58%,#6366F1 80%,#4338CA 100%);
  --grad-btn:linear-gradient(115deg,#0B6BFF,#1E7BFF 45%,#6366F1 100%);
  --r-s:12px; --r-m:20px; --r-l:28px;
  --shadow-s:0 2px 8px rgba(12,40,90,.06);
  --shadow-m:0 14px 40px -14px rgba(12,40,90,.18);
  --shadow-l:0 40px 90px -32px rgba(12,40,90,.30);
  --wrap:1220px;
  --ease:cubic-bezier(.22,1,.36,1);
  --ease-2:cubic-bezier(.65,0,.35,1);
  --font:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SFMono-Regular",Consolas,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.02em;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
img,svg{max-width:100%;display:block}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}

/* ---------- 背景层（与官网首页同步：漂移网格 + 动画蓝紫光斑 + 噪点 + 粒子星链） ---------- */
.bg-layer{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.bg-grid{
  position:absolute;inset:-10%;
  background-image:linear-gradient(rgba(11,22,40,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(11,22,40,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 20%,transparent 78%);
  animation:gridDrift 40s linear infinite;
}
@keyframes gridDrift{to{background-position:64px 64px,64px 64px}}
.bg-blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;will-change:transform}
.blob-a{width:46vw;height:46vw;left:-10vw;top:-12vw;background:radial-gradient(circle at 30% 30%,#7FB6FF,#0B6BFF 60%,transparent 72%);animation:blobA 22s var(--ease-2) infinite}
.blob-b{width:40vw;height:40vw;right:-8vw;top:6vw;background:radial-gradient(circle at 60% 40%,#A5B8FF,#4F46E5 62%,transparent 74%);animation:blobB 26s var(--ease-2) infinite}
.blob-c{width:52vw;height:52vw;left:22vw;top:48vh;background:radial-gradient(circle at 50% 50%,#C7DEFF,#00A3FF 58%,transparent 72%);opacity:.22;animation:blobC 30s var(--ease-2) infinite}
@keyframes blobA{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(8vw,6vh) scale(1.12)}66%{transform:translate(-4vw,10vh) scale(.94)}}
@keyframes blobB{0%,100%{transform:translate(0,0) scale(1)}40%{transform:translate(-7vw,12vh) scale(1.15)}70%{transform:translate(3vw,-4vh) scale(.92)}}
@keyframes blobC{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-10vw,-8vh) scale(1.18)}}
.bg-noise{position:absolute;inset:0;opacity:.32;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
}
.bg-canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.9}
@media(prefers-reduced-motion:reduce){
  .bg-grid,.bg-blob{animation:none}
}

/* ---------- 顶栏 ---------- */
.fnav{position:sticky;top:0;z-index:50;background:rgba(244,248,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.fnav__in{max-width:var(--wrap);margin:0 auto;padding:14px 28px;display:flex;align-items:center;gap:18px}
.fnav__brand{display:flex;align-items:center;gap:10px;font-weight:900}
.fnav__logo{width:34px;height:34px;border-radius:11px;background:var(--grad);box-shadow:0 10px 24px -10px rgba(11,107,255,.7)}
.fnav__links{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.fnav__links a{padding:8px 14px;border-radius:99px;font-size:13.5px;font-weight:700;color:var(--ink-2);transition:background .3s,color .3s}
.fnav__links a:hover{background:rgba(11,22,40,.05)}
.fnav__links a.is-on{background:linear-gradient(135deg,rgba(11,107,255,.13),rgba(99,102,241,.17));color:var(--ink)}
.fnav__me{display:flex;align-items:center;gap:10px;margin-left:8px}
.fnav__avatar{width:32px;height:32px;border-radius:50%;background:var(--grad-btn);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800}
@media(max-width:760px){
  /* 窄屏收起次要导航，但保留「返回官网」，否则子站变成单向入口 */
  .fnav__in{padding:12px 18px;gap:10px}
  .fnav__brand{font-size:14px;gap:8px;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .fnav__logo{width:28px;height:28px;border-radius:9px;flex-shrink:0}
  .fnav__links{display:flex;margin-left:auto;gap:0;flex-wrap:nowrap}
  .fnav__links a{display:none}
  .fnav__links a:first-child{display:inline-block;padding:6px 11px;font-size:12.5px;white-space:nowrap;flex-shrink:0}
  .fnav__me{margin-left:0;flex-shrink:0}
  .fnav__me .btn{white-space:nowrap;padding:8px 12px}
}

/* ---------- 通用块 ---------- */
.page{padding:40px 0 80px;position:relative;z-index:2}
.sec-head{margin-bottom:28px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:99px;font-size:12px;font-weight:800;color:var(--violet);background:rgba(79,70,229,.09)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--coral)}
.h1{font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-.03em;margin:14px 0 12px}
.h2{font-size:clamp(22px,2.8vw,32px);font-weight:850;margin:12px 0 10px}
.lead{font-size:15.5px;color:var(--ink-2);line-height:1.8;max-width:720px}
.muted{color:var(--muted);font-size:13.5px}

.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:99px;font-size:14px;font-weight:800;transition:transform .3s var(--ease),box-shadow .3s,background .3s}
.btn--primary{color:#fff;background:var(--grad-btn);box-shadow:0 16px 34px -16px rgba(11,107,255,.8)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 22px 44px -16px rgba(11,107,255,.9)}
.btn--ghost{color:var(--ink);background:rgba(255,255,255,.8);border:1px solid var(--line)}
.btn--ghost:hover{background:#fff;border-color:rgba(11,107,255,.3)}
.btn--sm{padding:8px 16px;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}

.card{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:var(--r-l);padding:26px 26px;box-shadow:var(--shadow-s)}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:980px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* ---------- 表单 ---------- */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13px;font-weight:800;color:var(--ink-2)}
.field input,.field select,.field textarea{
  font:inherit;font-size:14px;padding:12px 14px;border-radius:var(--r-s);
  border:1px solid var(--line);background:#fff;color:var(--ink);transition:border-color .3s,box-shadow .3s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:rgba(11,107,255,.5);box-shadow:0 0 0 4px rgba(11,107,255,.1)}
.field textarea{min-height:96px;resize:vertical}
.field__hint{font-size:12px;color:var(--muted)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
@media(max-width:640px){.form-row{grid-template-columns:1fr}}

/* ---------- 提示 ---------- */
.alert{padding:12px 16px;border-radius:var(--r-s);font-size:13.5px;font-weight:600;margin-bottom:16px}
.alert--err{background:rgba(11,107,255,.1);color:#0B4FD8;border:1px solid rgba(11,107,255,.25)}
.alert--ok{background:rgba(79,70,229,.08);color:#3730A3;border:1px solid rgba(79,70,229,.2)}
.alert--info{background:rgba(11,22,40,.04);color:var(--ink-2);border:1px solid var(--line)}

/* ---------- 徽标 / 标签 ---------- */
.tag{display:inline-block;padding:5px 11px;border-radius:99px;font-size:11.5px;font-weight:700;background:rgba(11,22,40,.05);color:var(--ink-2)}
.tag--violet{background:rgba(79,70,229,.1);color:var(--violet)}
.tag--coral{background:rgba(11,107,255,.12);color:#0B4FD8}
.tag--ok{background:rgba(46,180,120,.12);color:#1E8B5C}
.tag--warn{background:rgba(0,216,255,.18);color:#0369A1}

/* ---------- 进度 ---------- */
.bar{height:8px;border-radius:99px;background:rgba(11,22,40,.08);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad-btn);transition:width .6s var(--ease)}
.ring{width:120px;height:120px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--coral) 0turn,var(--violet) 1turn);position:relative}
.ring span{width:96px;height:96px;border-radius:50%;background:var(--bg);display:grid;place-items:center;font-size:24px;font-weight:900}

/* ---------- 课程 ---------- */
.course{border:1px solid var(--line);border-radius:var(--r-l);background:#fff;padding:22px;transition:transform .4s var(--ease),box-shadow .4s}
.course:hover{transform:translateY(-4px);box-shadow:var(--shadow-m)}
.course__k{font-family:var(--mono);font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--violet);margin-bottom:10px}
.course h4{font-size:17px;margin-bottom:8px}
.course p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.lesson{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:var(--r-s);transition:background .3s}
.lesson:hover{background:rgba(11,22,40,.035)}
.lesson__ck{width:22px;height:22px;border-radius:7px;border:1.6px solid rgba(11,22,40,.2);display:grid;place-items:center;font-size:12px;color:#fff;flex-shrink:0;cursor:pointer}
.lesson__ck.is-done{background:var(--grad-btn);border-color:transparent}
.lesson__t{font-size:13.5px;font-weight:650}
.lesson.is-done .lesson__t{color:var(--muted);text-decoration:line-through}

/* ---------- 人才库 ---------- */
.talent{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:24px;transition:transform .4s var(--ease),box-shadow .4s}
.talent:hover{transform:translateY(-5px);box-shadow:var(--shadow-m)}
.talent__top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.talent__ava{width:52px;height:52px;border-radius:16px;background:var(--grad-btn);color:#fff;display:grid;place-items:center;font-size:19px;font-weight:900;flex-shrink:0}
.talent h3{font-size:19px}
.talent__meta{font-size:12.5px;color:var(--muted)}
.talent__intro{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin:10px 0 14px}
.domains{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.case{border-left:2px solid;border-image:linear-gradient(180deg,#0B6BFF,#6366F1) 1;padding:2px 0 2px 14px;margin-bottom:12px}
.case b{display:block;font-size:14px;font-weight:800}
.case span{font-size:12.5px;color:var(--ink-2)}
.case em{font-style:normal;color:var(--coral);font-weight:800}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.filters button{padding:7px 14px;border-radius:99px;font-size:12.5px;font-weight:700;background:#fff;border:1px solid var(--line);transition:all .3s}
.filters button.is-on{background:var(--grad-btn);color:#fff;border-color:transparent}

/* 交付阶段多选（后台录入表单，视觉与上方筛选条一致） */
.phases{display:flex;flex-wrap:wrap;gap:8px}
.phases label{display:inline-flex;align-items:center;padding:8px 15px;border-radius:99px;font-size:13px;font-weight:700;
  background:#fff;border:1px solid var(--line);cursor:pointer;transition:all .3s;user-select:none}
.phases label:hover{border-color:rgba(11,107,255,.35)}
.phases label.is-on{background:var(--grad-btn);color:#fff;border-color:transparent}
.phases input{position:absolute;opacity:0;width:0;height:0;pointer-events:none}

/* ---------- 支付 ---------- */
.pay{display:grid;grid-template-columns:1fr 320px;gap:28px;align-items:start}
@media(max-width:860px){.pay{grid-template-columns:1fr}}
.qr{width:230px;height:230px;margin:0 auto;padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);display:grid;place-items:center;box-shadow:var(--shadow-s)}
.qr canvas,.qr img{width:100%;height:100%}
.price{font-size:34px;font-weight:900;letter-spacing:-.02em}
.price small{font-size:14px;font-weight:700;color:var(--muted)}

/* ---------- 后台 ---------- */
.admin-tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.admin-tabs button{padding:10px 18px;border-radius:99px;font-size:13.5px;font-weight:800;background:#fff;border:1px solid var(--line)}
.admin-tabs button.is-on{background:var(--grad-btn);color:#fff;border-color:transparent}
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th,.tbl td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line-2)}
.tbl th{font-size:12px;color:var(--muted);font-weight:800;letter-spacing:.04em}
.tbl tr:hover td{background:rgba(11,22,40,.02)}
.tbl-wrap{overflow-x:auto}
.stat{padding:20px;border-radius:var(--r-m);background:#fff;border:1px solid var(--line)}
.stat b{display:block;font-size:28px;font-weight:900;letter-spacing:-.02em}
.stat span{font-size:12.5px;color:var(--muted)}

/* ---------- 登录（结构/尺寸/交互与 /store 智能体平台登录弹窗一致，配色沿用 FDE 蓝紫） ---------- */
.auth-dialog{
  background:var(--surface);text-align:center;position:relative;
  border:1px solid rgba(255,255,255,.45);border-radius:21px;
  width:min(440px,100%);margin:48px auto;padding:34px 40px 28px;
  box-shadow:var(--shadow-l);
  /* 平台弹窗继承的是 14px/1.65 的 body，子站 body 是 16px，这里对齐基准字号，
     否则所有未显式设字号的文字（提交按钮、提示等）都会大一号 */
  font-size:14px;
}
.auth-dialog h2{font-size:25px;font-weight:400;line-height:1.65;letter-spacing:-.7px;margin:13px 0 1px}
.auth-dialog>p{color:var(--muted);margin:0 0 25px;font-size:14px}
.icon-button{
  border:1px solid var(--line);background:var(--surface);width:34px;height:34px;color:var(--muted);
  cursor:pointer;border-radius:10px;flex:none;display:grid;place-items:center;transition:all .2s;
}
.icon-button:hover{border-color:rgba(11,22,40,.18);color:var(--ink);transform:translateY(-1px)}
.modal-close{position:absolute;top:17px;right:17px;border-radius:50%}

.auth-tabs{border-bottom:1px solid var(--line);display:flex}
.auth-tabs button{
  color:var(--muted);background:0 0;flex:1;padding:11px 2px;position:relative;
  font-size:14px;font-weight:400;cursor:pointer;transition:color .2s;
}
.auth-tabs button.on{color:var(--ink);font-weight:750}
.auth-tabs button.on:after{
  content:"";background:var(--coral);border-radius:2px;height:2px;position:absolute;bottom:-1px;left:15%;right:15%;
}

.auth-form{gap:10px;margin-top:20px;display:grid}
.field-icon{
  border:1px solid var(--line);min-height:49px;color:var(--muted);border-radius:11px;
  align-items:center;gap:10px;padding:0 13px;display:flex;background:var(--surface);
  transition:border-color .2s,box-shadow .2s;
}
.field-icon:focus-within{border-color:var(--coral);box-shadow:0 0 0 3px rgba(11,107,255,.10)}
.field-icon>svg{flex:none;color:var(--muted)}
/* padding:0 —— 否则会吃到浏览器对 <input> 的默认 1px 内距，输入框比平台高 2px */
.field-icon input{background:0 0;border:0;outline:0;padding:0;flex:1;min-width:0;font:inherit;color:var(--ink)}
.field-icon input::placeholder{color:var(--muted);opacity:.85}
.field-icon.inp-affix{padding-right:6px}

.primary-button,.outline-button{
  cursor:pointer;min-height:38px;border-radius:10px;justify-content:center;align-items:center;gap:7px;
  padding:0 16px;font-weight:700;display:inline-flex;
  transition:transform .24s var(--ease),box-shadow .24s ease,background .24s ease;
}
.primary-button{border:1px solid var(--coral);background:var(--grad-btn);color:#fff;box-shadow:0 7px 17px -6px rgba(11,107,255,.55)}
.primary-button:hover{transform:translateY(-2px);box-shadow:0 10px 24px -6px rgba(11,107,255,.62)}
.primary-button:disabled{cursor:not-allowed;opacity:.55;transform:none}
.outline-button{border:1px solid rgba(11,22,40,.16);background:var(--surface);color:var(--ink-2)}
.outline-button:hover{border-color:var(--coral);color:var(--coral)}
.auth-submit{min-height:50px;margin-top:5px;width:100%}

.inp-affix{border:1px solid var(--line);border-radius:11px;align-items:center;display:flex}
.inp-affix .affix-btn{flex:none;padding-inline:12px}
.inp-affix .affix-btn:disabled{cursor:not-allowed;opacity:.5}
.inp-affix .affix-btn:disabled:hover{border-color:rgba(11,22,40,.16);color:var(--ink-2)}

.auth-divider{color:var(--muted);justify-content:center;align-items:center;margin:20px 0 14px;font-size:11px;display:flex;position:relative}
.auth-divider:before,.auth-divider:after{content:"";background:var(--line);flex:1;height:1px}
.auth-divider span{padding:0 13px}

/* 微信登录保留官方绿：它是微信品牌色，两侧界面完全一致 */
.wechat-login{
  color:#08a815;background:#f0fff1;border:1px solid #75db79;border-radius:11px;padding:0;
  justify-content:center;align-items:center;gap:8px;width:100%;min-height:46px;font-weight:700;
  display:flex;cursor:pointer;transition:transform .2s,box-shadow .2s;
}
.wechat-login:hover{transform:translateY(-1px);box-shadow:0 8px 20px -12px rgba(8,168,21,.8)}

.form-notice{
  background:rgba(11,107,255,.07);color:#0B4FBF;border:1px solid rgba(11,107,255,.20);
  border-radius:9px;margin:10px 0;padding:10px 12px;font-size:12px;text-align:left;
}
/* padding:0 —— 否则会吃到浏览器对 <button> 的默认 1px 6px 内距，比平台宽一圈 */
.auth-switch{color:var(--muted);cursor:pointer;background:0 0;padding:0;margin-top:17px;font-size:14px}
.auth-switch b{color:var(--coral)}

.qr-panel{flex-direction:column;justify-content:center;align-items:center;min-height:285px;display:flex}
.qr-panel b{margin-top:13px}
.qr-panel small{color:var(--muted)}
.qr-frame{border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px}
.qr-frame.qr-wx-frame{background:0 0;border:0;padding:0}
.qr-wx{border:0;width:300px;max-width:100%;height:400px;display:block}
.qr-bind-form>b{margin-top:6px;font-size:15px}
.qr-bind-form>small{color:var(--muted);margin:-7px 0 7px}

.agree-row{color:var(--muted);cursor:pointer;user-select:none;align-items:center;gap:7px;margin-top:12px;font-size:12px;line-height:1.5;display:flex;text-align:left}
/* margin/font:0 —— 复选框的 UA 默认是 margin:3px + 13.33px 字体，会让勾选行高 2px */
.agree-row input{width:14px;height:14px;margin:0;font:inherit;accent-color:var(--coral);cursor:pointer;flex:none}
.agree-row a{color:var(--coral);font-weight:600}

.spin{animation:1s linear infinite spin}
/* 🔴 转圈必须套一层 HTML 容器：hidden 属性定义在 HTMLElement 上，
   直接设在 <svg> 上只是普通 JS 属性、不会隐藏元素（踩过）。 */
.qr-loading{display:grid;place-items:center;line-height:0;color:var(--coral)}
@keyframes spin{to{transform:rotate(360deg)}}

@media(min-width:640px){
  .auth-dialog{border-radius:20px;padding:51px 40px 37px}
  .auth-dialog h2{margin:0 0 4px;font-size:26px}
  .auth-dialog>p{margin-bottom:31px}
  .auth-tabs{width:190px;margin:0 auto}
  .auth-tabs button{padding:12px 8px}
  .auth-form{margin-top:28px}
  .qr-panel{min-height:265px}
}
@media(max-width:639px){
  .auth-dialog{padding:31px 20px 24px;margin:24px auto}
  .auth-tabs button{font-size:12px}
  .qr-wx{height:340px}
}

.empty{padding:48px;text-align:center;color:var(--muted);font-size:14px}
.hidden{display:none !important}
/* 🔴 必须保留：登录页用 hidden 属性切换面板，而 .auth-form{display:grid} /
   .field-icon{display:flex} 等作者样式会盖掉 UA 的 [hidden]{display:none}，
   不写这条则「隐藏」完全失效（元素照常显示）。 */
[hidden]{display:none !important}